Car-truck bolster.



No. '7|o,97a. Patented out. I4, |902.

n. H. Honnsnoox.

CAR TRUCK BDLSTER.

(Application lsd. June 25, 1902.)

(No Model.)

NTTED STATES PATENT OEEIcE.

RAYMOND H. HORNBROOK, OF CANTON, OHIO.

CAR-TRUCK BOLSTER.

SPECIFICATION forming part of Letters Patent No. 710,978, dated October14, 1902.

Application filed .Tune 25, 1902. Serial No. 113,065. (No model.)

T0 all whom, it Titcty concern:

Be it known that 1, RAYMOND H. HORN- BROOK, a subject of the King ofGreat Britain, residing at Canton, in the county of Stark and State ofOhio, have invented a new and useful Oar-Truck Bolster, of which thefollowing is a specification.

My invention relates to a trnssed bolster for car-trucks, and has forits objects a simple and efficient construction from structural steelshapes, rods, and plates of the bolster proper, channels on either sidefor the bolsterguides of the truck, and a spring-seat for resting on thetruck-supporting bars. I attain these objects by the mechanismillustrated iny the accompanying drawings, in which- Figure 1 is a planview of the bolster, showing one end and part of the truck-frame insection; Fig. 2, a side elevation showing one end and part of thetruck-frame in section; Fig. 3, an end view of the bolster and part ofthe truck-frame, showing some parts in section; Fig. r-l, a middlecross-section of the bolster, and Fig. 5 an inverted plan View of thespring-seat.

Similar numerals refer to similar parts throughout the drawings.

The compression members of the bolster are made of Z-bars 1, locatedside by side, with their webs verticalY and their upper flanges directedinward, respectively. The Z-bars are preferably horizontal in theiriniddle parts, from which they are bentY slightly to incline downwardand outward to the inner sides of the respective spring-plates 2, wherethey are bent again and continue horizontalV to their respective ends.The spring-plates 2 are formed substantially square and are riveted tothe lower flanges of the Z-bars at their respective horizontal end partsby the rivets 3, the lower heads of which rivets are countersunk in theplate to present a iiat surface for the respective springs et. Theseparating members of the bolster are made of short channelbars5,preferably located with the irrespective flanges outward, to the upperiianges of which channel-bars the lower flanges of the VZ-bars,respectively, are riveted.

The tension members of the bolster are made of rods 6, preferably formedrectangular in their middle sections and upset at the respective ends toform the round heads 7, on

which a screw-thread is cut. The tensionrods are located one under eachZ-bar just inside of its web, and they are preferably horizontal intheir middle parts either way to the separat-ing channel-bars, wherethey are bent to incline upward andout'ward, passing above thespring-plates, respectively,wi th their-respective heads passing throughthe apertures S in the short channel-bar end lplates 9 and through theapertures 10 in the wedge-shaped washer-plate 11, respectively, and theyreceive the nuts 12 on the respective ends outside of the washer-plates.Theheads of the rods are preferably against the webs of the Z-bars andthe end edges ofthe upper flanges thereof, respectively. l

The channel-bar end plates 9 respectively span the ends of the Z-bars,and the flanges are turned inward along the outer sides of the webs ofthe respectivebars and serve to hold the bars from spreading apart. Thewasher-plates 11 preferahly'cover the entire outer sides of the endplates, and the outer faces of the washer-plates are beveled to beperpendicular to the respective axes of the tension-rods, so the nuts 12will come squarely against these plates, respectively. By thisarrangement the nuts come opposite the upper flanges and the webs of theZ-bars, respectively, which squarely receive the binding force of thetension-rods, the same being evenly distributed by the intervening endplates, respectively, and all parts are steadied in proper position bythe end-plate flanges on the outside of the webs and the tension-barheads on the inside of the webs and on the under side of the upperflanges, respectively, of the ends of the Z-bars.

The angle-plates 13 are vertically located in Vpairs opposite each otheron the sides near the respective ends of the bolster proper. Between theplates of each pair and the webs of the adjacent Z-bars are thefiller-plates 14 and 15, respectively, which even up with the outersides of the flanges of, the end plates, respectively, through whichfiller-plates and the flanges of the end plates, respectively, theangle-plates are riveted to the respective webs of the Z-bars, and thelangle-plates of each pair are spaced apart to form a channel betweentheir respective projecting flanges vfor the bolster-guides 16 of thetruck-frame.

IOC

The space between each pair of angle-plates is partly lled by theU-shaped plate 17, with its closed side outward, its flanges against therespective flanges of the angle-plates, to which they are riveted, andthe edges of its flanges against the Z-bar web, and the remaining spacebetween the U-plate and the bolster-guide is filled by the liner-plate18, which has the bent-over handle 19 on its upper edge for lifting itout when desired. This liner-plate serves to receive the wear caused bythe rubbing of the sides of the bolster up and down the bolster-guidesof the truck and can be readily renewed when worn out.

The spring-seat is made of the plate 20, which substantiallycorrespondsto the springplate 2, and along either side of its lower surface areattached by rivets 21 the angle-bars 22, the respective ends of whichangle-bars are extended and bent up past the edges of the plate. Theupper heads of the rivets 21 are countersunk in the plate to present afiat surface for the respective springs 4. On the upper side of thespring-seat plate are located the posts 23 for centering the respectivesprings 4, which posts are riveted by their respective reduced Shanks tothe plate, the rivet-heads 24 being countersunk in the bottom of saidplate to present a smooth surface. The angle-bars are preferably notchedat 25 around these rivet-heads to make them accessible. The spring-seatrests on the supporting-bars 26 of the truck, and the depending anges ofthe angle-bal's 22, on either side of said supporting-bars,respectively, hold the seat in proper place.

What I claim as my invention, and desire to secure by Letters Patent,is-

l. A car-truck bolster composed of Z-bar compression members, separatingmembers riveted to the lower flanges near the middle of said bars,spring-plates riveted to said flanges near the respective ends of thebars, tension-rods passing under said separating members, over saidspring-plates, between said Z-bars and beyond the respective endsthereof, end plates spanning the ends of the Z-bars, there beingapertures in said end plates for said rods respectively, and nuts on theends of said rods against the end plates respectively.

2. A car-truck bolster composed of Z-bar compression members, separatingmembers riveted to the lower lianges near the middle of said bars,tension-rods passing under said separating members and extending beyondthe respective ends of the Z-bars near inside the webs and below theupper anges thereof, end plates with flanges extending along the outersides of the respective Z-bar webs, there being apertures in said endplates for said rods respectively, and nuts on the ends of the rodsagainst the end plates respectively.

3. A car-truck bolster composed of Z-bar compression members, separatingmembers riveted to the lower anges near the middle of said bars,tension-rods passing under said separating members and extending beyondthe respective ends of the Z-bars, wedgeshaped washer-plates spanningthe ends of the Z-bars, there being apertures in said Washer-plates forsaid rods respectively, and nuts on the ends of said rods against saidWasher-plates respectively.

4. The combination of a car-truck bolster, angle-plates riveted on theside of said bolster, U-shaped plates partly filling the space betweensaid angle-plates, atruclcbolster guide operating between saidangle-plates, and a liner-plate between said U-plate and thebolster-guide.

5. A car-truck-bolster spring-seat composed of a plate, angle-barsriveted on either side along the lower surface of said plate, and springcentering-posts riveted on the upper surface of said plate.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

RAYMOND H. HORNBROOK.

Witnesses:

LESTER DEwEEsE, HARRY FREASE.

